--  @testpoint:opengauss关键字result(非保留)，作为函数名

--关键字不带引号-成功
drop function if exists result;
create function result(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
drop function result;
--关键字带双引号-成功
drop function if exists "result";
create function "result"(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
drop function "result";
--关键字带单引号-合理报错
drop function if exists 'result';
create function 'result'(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--关键字带反引号-合理报错
drop function if exists `result`;
create function `result`(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/